采用粘度法分析了不同溶剂对壳聚糖粘度的影响，用光散射法测定了超声波分级的壳聚糖的相对分子质量。
The relative molecular mass of chitosan fractionated by ultrasonic wave was measured by the light scattering method.
本文主要研究了小波变换在岩石超声波测试信号分析中的应用，通过对岩石信号的小波分析，确定出岩石的裂隙以及完整程度。
In this paper, the wavelet transformation's application in rock tested signal analysis is studied. Based on the analysis result, the rock crack position and rock integrated degrees is determined.
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